Inherited a 91 Daytona from my 83 year old mother. Only 50K original miles, garage kept. Dodge dealer says it need new ECM for $1600. I found out that I can buy one and replace it myself. Can anyone tell me how to remove the old ECM and maybe a diagram? Thanks.

 

Unplug, remove 3 bolts. Install 3 bolts, plug in. IDK why it 'needs a ecm' pretty darn rare problem.